Recently reviewed study shows that what parents-to-be normally wait 20 weeks for, can now be achieved in seven. This form of prenatal determination uses cell-free fetal DNA from the mother’s blood to determine the gender of the fetus.
These newly reviewed tests have been available for sale in many countries but have only recently been examined by experts. US experts found that the study is 98% percent accurate when blood was tested after the seventh week of gestation.
The amount of risk accompanied by invasive cytogenetic tests is extremely diminished by this noninvasive method. Tests like amniocentesis can help determine genetic abnormalities as early as the 15th week of pregnancy. But pregnant women must risk miscarriages and other complications to themselves and their baby.
An ultrasound is another common method of determination that similar to testing maternal blood, is also noninvasive. The position of the baby can cause issues though and parents usually wait 18-20 weeks before conducting this test.
Researchers reviewed 6,541 pregnancies in 57 different studies and found a sensitivity of 95-percent and a specificity of 98.6-percent. These results are tremendously accurate and can prove to be very helpful for high risk pregnancies.
Some are concerned though that the availability of such an early test will cause parents to choose pregnancies based on gender. For example, if a family already has all girl siblings, the parents may not continue with the pregnancy if the gender was found to be female again. This can also be an issue in certain cultures where males are favored.
What do you think about these new early-detection gender tests for your family and your unborn baby?
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